I am building open source aerospike to elastic search connector in which aerospike is the primary data store and the indexed data (searchable fields) is stored in the elastic search. So whenever there is an insert, update and delete operation in the aerospike namespace I want an event or logs stored with the old value and the new value it is changed to. In short MySql bin logs equivalent of the aerospike.
See the announcement about the Change Notification framework, and the Aerospike Kafka Connector built on top of it.
Aerospike 4.4: Change Notification and Operational Improvements